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    三原色包含：<span style="color:red">红</span>、<span style="color:green">绿</span>、<span style="color:blue">蓝</span>

    <h1>标题</h1>
    <h1>标题</h1>
    <p>adfafasf</p>
    <p>asdfasfasfafd</p>
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